Can somebody answer my question???????

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hayley0120
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Can somebody answer my question???????

Post by hayley0120 » Sun Nov 12, 2006 12:31 am

I have always wondered this but never gotten around to asking it, do fish sleep? And if they do, do they close their eyes, and do they even have eyelids?????

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Beetle
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Post by Beetle » Mon Nov 13, 2006 10:18 am

They do sleep but they do not close they eyelids cause they are fused together into transparent membrane. Similar case is with snakes.
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MrMistery
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Post by MrMistery » Mon Nov 13, 2006 6:26 pm

depends on what kinds of fish. most sharks have to keep moving at all times so they do not sleep. their brain has a mechanism that allows their hemispheres to rest one at a time.
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Post by Darby » Tue Nov 14, 2006 3:09 am

When you read "most sharks," remember that it translates to "most pelagic sharks," which are the sexy ones. There are lots of benthic sharks which have pumping gills and don't need to keep moving. No idea how they sleep, though.

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Dr.Stein
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Post by Dr.Stein » Tue Nov 14, 2006 5:42 am

Fishes don't have eyelids, they can't close their eyes. I see some fishes are stop moving, just stay calm in their shelter. It is believed as the time for them for resting.

For instance, my lovely seahorses, they "go home" when it is getting dark and stay there til th next day when the sun is going to shine again :)
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Post by alextemplet » Tue Nov 14, 2006 5:47 am

I wish I didn't sleep.
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Amrik
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Post by Amrik » Thu Nov 16, 2006 2:34 pm

same here Alex~~ hehe
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sachin
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Post by sachin » Thu Nov 16, 2006 5:10 pm

I have seen Fishes rest on bottom, in darker places even in Day time. I don't think so that they sleep but gives rest to thier brain and body by doing nothing for some time.
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Dr.Stein
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Post by Dr.Stein » Fri Nov 17, 2006 4:14 am

yeah and lower their metabolism ate ;)
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nugget
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Post by nugget » Fri Nov 17, 2006 6:23 am

I would think they would have a "resting state" like Dr Stein said where they lower their metabolism, but not like the sleep we do, because they would need to keep their gills ventilated right? and i know not all of them are able to ventilate them by just flappnig their gills.
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